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Questions tagged [shapefile]

A vector data storage format for storing the location, shape, and attributes of geographic features. Often referred to as 'an ESRI shapefile', as ESRI developed it.

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5answers
3k views

Problem loading OS OpenData multipoint shapefile into PostGIS

I am trying to load the OS OpenData Strategi shapefile dataset into a PostGIS database. I have had no problems with the polyline and polygon shapefiles, but I am unable to get the point shapefiles to ...
13
votes
3answers
1k views

Centralizing shapefile data into database

I've got hundreds of shapefiles from various different GIS projects that I want to start consolidating into a single database platform, currently attempting this with Postgres / PostGIS. Hardly any ...
3
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2answers
1k views

How to join two shapefiles and create a new shapefile using ArcObjects?

Newbie in ArcObjects programming. Using C#. Developing a desktop application. I have two shapefiles. One is a point shapefile Called Addresses and another Polygon shapefile which is called Area. The ...
2
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1answer
2k views

Creating a new layer from query results

Newbie in ArcObjects programming. Using C#. Developing a desktop application. I need to join 2 tables: POI layer which is a Point layer and a parcel layer which is a Polygon Where POI.HouseNo ...
20
votes
2answers
30k views

Adding shapefile or feature class as layer in ArcGIS Desktop using Python/ArcPy?

I am trying to automate various tasks in ArcGIS Desktop (using ArcMap generally) with Python, and I keep needing a way to add a shapefile to the current map. (And then do stuff to it, but that's ...
7
votes
3answers
4k views

How To Convert A Set of ARC/Info ASCII .e00, .e01, .e02, etc Files Into .shp Files

I have a set files that I downloaded with extensions (.e00, .e01, .e02, etc). I have read that these are files used by ARC Info mainly, but I do not have ARC and nor am I really that interested in ...
3
votes
2answers
572 views

mapserver displays raster image in mirror

I've installed Mapserver and used a map file to set a raster layer and vector(shp) layers on top of it. However, although displayed in the expected order, the png file is displayed in mirror(compared ...
3
votes
2answers
2k views

How to get accurate mile markers from DOT ShapeFile?

I'm having trouble getting accurate mile markers through route traversal using PostGIS. Based on the discussion in Geocode from mile marker/milepost to latitude/longitude?, I downloaded Texas ...
10
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5answers
7k views

update one shapefile attribute table with values from another dbf table

I try to explain here what I am trying to do: I have one shapefile and one independent dbf table with the same fields. In the dbf table all the fields are populated but in the shapefile attribute ...
4
votes
5answers
2k views

Simplify shapefile parcel layer

I have a very large shapefile with over a million parcels within it. The problem I am having is that the polygons representing each parcel are very jagged. What I am looking for is a simple and fast ...
7
votes
2answers
2k views

Control the colors of a shapefile

I have a Shapefile with road data. Sometimes the roads are blue, sometimes they are green. I didn't used to mind, but now I'm tiling everything so I need to control the colors. I'm loading it with ...
7
votes
5answers
11k views

I am struggling to convert .dwg to .shp, ideas?

Any ideas as to how can I convert dwg to shp? I tried Kosmo and gvSIG. gvSIG kind of worked but it seems like I lost information.. in addition everything was converted into lines, no polygons. I can ...
37
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10answers
30k views

Open Source Tool capable of reading Esri File Geodatabase (.gdb)?

I have an ESRI File Geodatabase (.gdb) file that I would like to convert to shapefile (or any other non-proprietary format). Are there any Open Source tools to do so?
2
votes
4answers
538 views

mapserver not displaying anything

I've been reading through Tyler Mitchel's Web Mapping Illustrated and also downloaded a copy of the itasca sample from maptools.org. Then created some shapefiles in OpenEV and modified the itasca.map ...
11
votes
5answers
4k views

how can i convert a shapefile to lat and lon boundaries?

i have a shapefile of country subdivisions and i would like to extract an array of bounding lat and lon for each division.. is it possible to do?
15
votes
2answers
8k views

How to add custom Feature attributes to Shapefile using Python?

I am seeking a way to take an existing Shapefile that has a Feature set of 200 countries. Each country Feature has an attribute of "NAME." My objective is to create a Python script that adds an ...
5
votes
1answer
211 views

How display outlines in a Map, only from a scale, but the colored polygon in all scales?

I want to display a shape with UMN-Mapserver. It has different coloured polygons and also outlines. But I want to display the outlines only, from a specific scale. I could add MINSCALE 150000, but in ...
47
votes
4answers
48k views

Which character encoding is used by the DBF file in shapefiles?

Which character-encoding is used by the dbf-file in shapefiles? It seems it is handled different, based on the program and the local encoding-settings of the machine. Which encoding is 'right' - ...
14
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6answers
2k views

Creating simple image from vector data

Can anyone suggest a quick (and preferably open source) way to create an image from a shapefile. For example, I have a shapefile containing parcel boundaries, I want to create a png file depicting ...
7
votes
1answer
2k views

Updating Lat/Longs and actual position of point shapefile using arcpy.UpdateCursor()?

I have a point shapefile with over 3000 points that are updated frequently, when they are updated they need to have their lat/longs changed which is entered into the attribute table. When the lat/...
1
vote
2answers
410 views

Programmatically modify MapTip Expression

If I load a layer via a shapefile and set ((ILayer)myLayer).ShowTips = true; How can I change the tip content (I want to point it to a different column or have a expression of multiple columns) ...
3
votes
1answer
856 views

Opening a shapefile with roads, how to display the road names?

I am using ((AxMapControl)myMap.AddShapeFile( directory, shapeFileName) To display a shapefile which has road data. Now the roads display properly, but the road names aren't displaying. How can I ...
15
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5answers
2k views

Does Re-Projecting ShapeFile only update content of *.prj file?

If I wish to change the projection of some shapefiles from .. let's say NAD83 (4269) to WGS84 (4326) ... and by using some 3rd party app .... does this mean the .prj file is only updated .. and not ...
4
votes
1answer
2k views

Mapnik Style Filter on River/Lakes Shapefile attributes (from Natural Earth Data)

As a followup to this question, I downloaded the vector data here: http://www.naturalearthdata.com/downloads/10m-physical-vectors/ and I successfully created the rasterized water/land mask I wanted: ...
7
votes
2answers
1k views

How does shp2pgsql define schema?

Can anyone explain how it is that the shp2pgsql loader for loading shapefiles into PostGIS goes about defining the schema for a table when importing a shapefile? To further explain, shapefiles are ...
4
votes
2answers
929 views

TIGER/Line processing

Does anyone know of scripts for merging TIGER/Line shp files? It is for extracting the road features only, but for the whole of USA. They are provided as shp files for one county at a time here: http:...
6
votes
1answer
4k views

Using QGIS to fix invalid geometry without saying not allowed?

I have a shapefile, and it's got a self-intersecting geometry in it. I'd like to fix the self-intersection, but it will require a few moves. When I attempt to move a point using the QGIS edit tools, I ...
1
vote
2answers
4k views

“Item not found in this collection” when trying to set the Shape on IFeatureBuffer

I'm working on code to open a 3rd party data file and convert it into a collection of features in a custom layer based on FeatureLayer. I have had no issue importing the data itself (nodal data for ...
3
votes
2answers
8k views

How can I convert Shapefiles (SHP) to KML? [duplicate]

Possible Duplicate: How can I convert KML to ESRI’s shapefile format? I have SHP files, I want KML files, what tools can convert?
3
votes
1answer
1k views

Loading map files using ArcGIS Silverlight API?

Is there a way to use the Silverlight API to load common maps formats (i.e., layers, shapefiles or rasters) off of my local machine?
31
votes
12answers
46k views

Converting shapefiles to text (ASCII) files? [duplicate]

How can I convert a shapefile (GIS) to text, or, how can I extract the information in a shapefile?
6
votes
1answer
282 views

What is the best way to store Flickr's Shapefiles Public Dataset in SQL Server 2008?

I'm wanting to import specific locations from the Flickr Shapefile Dataset into SQL Server would like to know what is the best way to store the data in SQL Server 2008? Link the the 1.0 Dataset: http:...
25
votes
9answers
17k views

How can I convert an excel file with x, y columns to a shapefile?

How can I convert an excel file with x, y columns to a point shapefile? There are some somewhat optional requirements in addition to the correct creation of a shapefile: Column types (as per Excel's ...
95
votes
24answers
109k views

Converting between KML and shapefile (SHP) format?

My users are sending me point data that were digitized using Google Earth. How can I convert their KML to a shapefile?
37
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15answers
97k views

Converting MapInfo TAB and/or MIF to SHP using free tools or ArcGIS for Desktop core product?

How do I convert MapInfo TAB and/or MIF files to SHP using only free tools or ArcGIS itself? I've not had much luck trying to do this in the past and I don't want to have to shell out for the ArcGIS ...
13
votes
10answers
56k views

Where can I find Canadian postal code geometries?

Where can I find the shapefiles for Canadian postal codes?
10
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1answer
1k views

How to convert a line shapefile into a CSV with nodes and links?

Is there a way to convert a linear shapefile into a CSV file of the following format: Node_1, Node_2, attribute_1, ...., attribute_x 1 2 "hello" 567845.334 I have looked at ...